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Earnings Per Share (Tables)
6 Months Ended
Jun. 30, 2012
Earnings Per Share [Abstract]  
Basic and Diluted EPS Computations

Reconciliations of the amounts of income and shares of PPL common stock (in thousands) for the ##D<QtrEndNoComma> used in the EPS calculation are:

     Three Months Six Months
     2012 2011 2012 2011
Income (Numerator)            
Income from continuing operations after income taxes attributable to PPL $ 277 $ 197 $ 818 $ 595
Less amounts allocated to participating securities   2   1   5   3
Income from continuing operations after income taxes available to PPL            
 common shareowners $ 275 $ 196 $ 813 $ 592
                
Income (loss) from discontinued operations (net of income taxes) available            
 to PPL $ (6) $ (1) $ (6) $ 2
                
Net income attributable to PPL $ 271 $ 196 $ 812 $ 597
Less amounts allocated to participating securities   2   1   5   3
Net income available to PPL common shareowners $ 269 $ 195 $ 807 $ 594
                
Shares of Common Stock (Denominator)            
Weighted-average shares - Basic EPS   579,881   561,652   579,462   522,897
Add incremental non-participating securities:            
  Stock options and performance units   444   367   465   287
  Forward sale agreements   268      135   
Weighted-average shares - Diluted EPS   580,593   562,019   580,062   523,184
                
Basic EPS             
Available to PPL common shareowners:            
  Income from continuing operations after income taxes  $ 0.47 $ 0.35 $ 1.40 $ 1.13
  Income (loss) from discontinued operations (net of income taxes)   (0.01)      (0.01)   0.01
  Net Income $ 0.46 $ 0.35 $ 1.39 $ 1.14
                
Diluted EPS             
Available to PPL common shareowners:            
  Income from continuing operations after income taxes  $ 0.47 $ 0.35 $ 1.40 $ 1.13
  Income (loss) from discontinued operations (net of income taxes)   (0.01)      (0.01)   0.01
  Net Income $ 0.46 $ 0.35 $ 1.39 $ 1.14
Common Stock Issuances

For the ##D<QtrEndNoComma>, 2012, PPL issued common stock related to stock-based compensation plans, ESOP and DRIP as follows:

(Shares in thousands) Three Months Six Months
         
Stock-based compensation plans (a)   76   353
ESOP      280
DRIP   617   1,175

(a)        Includes stock option exercises, vesting of restricted stock and restricted stock units and conversion of stock units granted to directors.

Antidilutive Securities Excluded From Diluted EPS

For the ##D<QtrEndNoComma>, the following options to purchase PPL common stock and performance units were excluded from the computations of diluted EPS because the effect would have been antidilutive.

  Three Months Six Months
(Shares in thousands) 2012 2011 2012 2011
             
Stock options   6,250   5,045   5,966   5,829
Performance units   34   1   115   4